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The river is approximately 100 km (62 mi) long and is located within the Iberian Pyrite Belt. [1] This area has large amounts of ore and sulphide deposits. The Rio Tinto area has been the site of approximately 5,000 years of ore mining , [ 3 ] including copper , silver , gold , and other minerals, [ 4 ] extracted as far as 20 kilometres from ...
Modern carranca Rio São Francisco. A carranca (Portuguese, literally "scowl" with another definition as "figurehead"; [1] Portuguese pronunciation: [kaˈʁɐ̃kɐ]) is a type of figurehead attached to river craft which is attributed with power to protect the boatmen from the river's evil spirits.
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) 2,4-dichlorophenoxyacetic acid (2,4-D) 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). The active ingredient of Agent Orange was an equal mixture of two phenoxy herbicides – 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) – in iso-octyl ester form, which contained traces of the dioxin 2,3,7,8-tetrachlorodibenzo ...
Bull's blood is the poison that is said to have been used by Themistocles and Midas for suicide. [12] The Chinese name for realgar is 雄黃 (Mandarin xiónghuáng), literally 'masculine yellow', as opposed to orpiment which is 'feminine yellow'. [13] Realgar was, along with orpiment, traded in the Roman Empire and was used as a red paint pigment.
Another common clue type is the "hidden clue" or "container", where the answer is hidden in the text of the clue itself. For example, "Made a dug-out, buried, and passed away (4)" is solved by DEAD. The answer is written in the clue: "maDE A Dug-out". "Buried" indicates that the answer is embedded within the clue.
Those with a history of poison ivy or poison oak contact dermatitis may be most at risk for such an allergic reaction. During mango's primary ripening season, it is the most common source of plant dermatitis in Hawaii. Manihot esculenta: cassava: Euphorbiaceae: Roots and leaves contain two cyanogenic glycosides, linamarin and lotaustralin.
The Skeena River passes through Terrace and played a crucial role during the age of the steamboat. The first steam-powered vessel to enter the Skeena was the Union in 1864. In 1866 the Mumford attempted to ascend the river but was only able to reach the Kitsumkalum River.
The 2015 Gold King Mine waste water spill was an environmental disaster that began at the Gold King Mine near Silverton, Colorado, [2] when Environmental Protection Agency (EPA) personnel, along with workers for Environmental Restoration LLC (a Missouri company under EPA contract to mitigate pollutants from the closed mine), caused the release of toxic waste water into the Animas River watershed.